/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:29:38,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:29:38,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:29:38,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:29:38,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:29:38,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:29:38,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:29:38,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:29:38,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:29:38,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:29:38,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:29:38,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:29:38,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:29:38,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:29:38,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:29:38,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:29:38,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:29:38,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:29:38,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:29:38,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:29:38,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:29:38,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:29:38,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:29:38,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:29:38,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:29:38,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:29:38,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:29:38,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:29:38,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:29:38,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:29:38,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:29:38,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:29:38,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:29:38,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:29:38,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:29:38,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:29:38,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:29:38,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:29:38,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:29:38,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:29:38,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:29:38,433 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 20:29:38,460 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:29:38,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:29:38,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:29:38,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:29:38,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:29:38,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:29:38,462 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:29:38,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:29:38,463 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:29:38,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:29:38,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:29:38,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:29:38,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:29:38,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:29:38,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:29:38,464 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:29:38,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:29:38,464 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:29:38,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:29:38,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:29:38,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:29:38,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:29:38,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:29:38,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:29:38,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:29:38,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:29:38,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:29:38,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:29:38,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:29:38,466 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:29:38,466 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:29:38,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:29:38,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:29:38,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:29:38,728 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:29:38,729 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:29:38,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-05 20:29:39,774 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:29:40,230 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:29:40,231 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-05 20:29:40,268 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e83235785/e0811dd86d9941e9af72b0df640ee60d/FLAG77e0948c5 [2022-12-05 20:29:40,281 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e83235785/e0811dd86d9941e9af72b0df640ee60d [2022-12-05 20:29:40,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:29:40,285 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:29:40,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:29:40,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:29:40,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:29:40,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cbd3b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40, skipping insertion in model container [2022-12-05 20:29:40,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:29:40,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:29:40,689 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-12-05 20:29:41,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:41,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:41,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:41,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:41,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:41,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:41,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:41,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:41,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:41,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:41,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:41,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:41,245 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:41,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:41,251 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:41,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:41,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:41,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:41,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:41,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:41,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:41,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:41,729 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 20:29:41,732 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:41,735 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:41,740 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:41,795 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:41,799 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:41,868 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 20:29:41,988 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:41,992 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:42,030 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 20:29:42,032 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 20:29:42,196 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 20:29:42,198 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 20:29:42,201 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 20:29:42,257 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 20:29:42,257 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:42,259 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 20:29:42,259 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:42,362 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 20:29:42,387 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 20:29:42,501 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 20:29:42,504 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 20:29:42,612 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 20:29:42,742 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 20:29:42,743 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 20:29:42,743 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 20:29:43,404 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 20:29:43,405 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:43,412 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:43,416 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:43,422 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:43,815 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 20:29:43,819 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 20:29:43,823 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 20:29:43,829 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 20:29:43,830 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 20:29:43,833 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 20:29:43,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:29:43,866 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:29:43,887 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-12-05 20:29:43,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:43,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:43,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:43,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:43,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:43,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:43,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:43,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:43,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:43,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:43,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:43,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,914 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 20:29:43,928 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:43,928 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:43,929 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:43,932 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:43,936 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:43,939 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 20:29:43,996 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:43,997 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:43,999 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 20:29:43,999 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 20:29:44,004 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 20:29:44,004 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 20:29:44,004 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 20:29:44,006 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 20:29:44,006 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:44,006 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 20:29:44,006 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:44,011 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 20:29:44,013 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 20:29:44,025 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 20:29:44,026 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 20:29:44,030 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 20:29:44,033 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 20:29:44,033 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 20:29:44,033 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 20:29:44,083 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 20:29:44,084 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:44,088 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:44,091 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:44,093 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:44,121 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 20:29:44,122 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 20:29:44,123 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 20:29:44,124 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 20:29:44,124 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 20:29:44,125 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 20:29:44,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:29:44,452 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:29:44,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44 WrapperNode [2022-12-05 20:29:44,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:29:44,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:29:44,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:29:44,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:29:44,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (1/1) ... [2022-12-05 20:29:44,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (1/1) ... [2022-12-05 20:29:44,605 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-12-05 20:29:44,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:29:44,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:29:44,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:29:44,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:29:44,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (1/1) ... [2022-12-05 20:29:44,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (1/1) ... [2022-12-05 20:29:44,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (1/1) ... [2022-12-05 20:29:44,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (1/1) ... [2022-12-05 20:29:44,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (1/1) ... [2022-12-05 20:29:44,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (1/1) ... [2022-12-05 20:29:44,631 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (1/1) ... [2022-12-05 20:29:44,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (1/1) ... [2022-12-05 20:29:44,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:29:44,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:29:44,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:29:44,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:29:44,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (1/1) ... [2022-12-05 20:29:44,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:29:44,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:29:44,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 20:29:44,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 20:29:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:29:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 20:29:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-05 20:29:44,711 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-05 20:29:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:29:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:29:44,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:29:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 20:29:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:29:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:29:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-12-05 20:29:44,718 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-12-05 20:29:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 20:29:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:29:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 20:29:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 20:29:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:29:44,720 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:29:45,099 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:29:45,100 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:29:45,367 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:29:45,386 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:29:45,387 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-05 20:29:45,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:29:45 BoogieIcfgContainer [2022-12-05 20:29:45,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:29:45,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:29:45,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:29:45,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:29:45,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:29:40" (1/3) ... [2022-12-05 20:29:45,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7197a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:29:45, skipping insertion in model container [2022-12-05 20:29:45,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:44" (2/3) ... [2022-12-05 20:29:45,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7197a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:29:45, skipping insertion in model container [2022-12-05 20:29:45,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:29:45" (3/3) ... [2022-12-05 20:29:45,394 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-05 20:29:45,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:29:45,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:29:45,407 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:29:45,473 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 20:29:45,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 332 transitions, 680 flow [2022-12-05 20:29:45,569 INFO L130 PetriNetUnfolder]: 11/330 cut-off events. [2022-12-05 20:29:45,569 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:29:45,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 330 events. 11/330 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 307 event pairs, 0 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 275. Up to 4 conditions per place. [2022-12-05 20:29:45,576 INFO L82 GeneralOperation]: Start removeDead. Operand has 328 places, 332 transitions, 680 flow [2022-12-05 20:29:45,580 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 318 places, 322 transitions, 653 flow [2022-12-05 20:29:45,582 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:29:45,593 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 318 places, 322 transitions, 653 flow [2022-12-05 20:29:45,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 318 places, 322 transitions, 653 flow [2022-12-05 20:29:45,673 INFO L130 PetriNetUnfolder]: 11/322 cut-off events. [2022-12-05 20:29:45,673 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:29:45,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 322 events. 11/322 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 288 event pairs, 0 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 275. Up to 4 conditions per place. [2022-12-05 20:29:45,680 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 318 places, 322 transitions, 653 flow [2022-12-05 20:29:45,681 INFO L188 LiptonReduction]: Number of co-enabled transitions 9480 [2022-12-05 20:29:47,290 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:47,290 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:47,292 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:47,293 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:47,560 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:47,561 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:47,562 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:47,563 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,074 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,075 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,076 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,076 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,686 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,687 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,688 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,689 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,820 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,821 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,823 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,824 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,543 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,544 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,545 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,546 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,633 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,633 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,636 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,637 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,688 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,689 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,826 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,827 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:29:49,828 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,828 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,929 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,929 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,931 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,931 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:50,497 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,497 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:50,712 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,712 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:50,714 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,715 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:56,726 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:56,727 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2022-12-05 20:29:56,733 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:56,733 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-12-05 20:29:56,738 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:56,738 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2022-12-05 20:29:56,758 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:56,758 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2022-12-05 20:29:56,762 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:56,763 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2022-12-05 20:29:59,683 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:59,685 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:59,686 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:59,686 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:02,508 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:02,509 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:02,518 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:02,519 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:09,016 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:09,017 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:09,018 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:09,018 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:13,414 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:13,415 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2022-12-05 20:30:13,419 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:13,420 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2022-12-05 20:30:13,425 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:13,425 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-12-05 20:30:13,430 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:13,430 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2022-12-05 20:30:13,433 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:13,433 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2022-12-05 20:30:16,714 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:16,715 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2022-12-05 20:30:16,718 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:16,719 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2022-12-05 20:30:16,721 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:16,722 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 934 [2022-12-05 20:30:16,725 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:16,725 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1218 [2022-12-05 20:30:16,731 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:16,732 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2022-12-05 20:30:16,736 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:16,736 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2022-12-05 20:30:16,740 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:16,741 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2022-12-05 20:30:21,818 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:21,819 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:21,820 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:21,821 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:21,824 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:21,825 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:21,826 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:21,827 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:22,490 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:22,490 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:30:22,492 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:22,493 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2022-12-05 20:30:22,495 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:22,495 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:30:22,497 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:22,497 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-12-05 20:30:22,499 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:22,500 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2022-12-05 20:30:27,511 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:27,512 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2022-12-05 20:30:27,516 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:27,517 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2022-12-05 20:30:27,520 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:27,521 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2022-12-05 20:30:27,523 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:27,524 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 763 [2022-12-05 20:30:27,526 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:27,527 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 999 [2022-12-05 20:30:27,531 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:27,531 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2022-12-05 20:30:27,535 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:27,535 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2022-12-05 20:30:52,809 WARN L233 SmtUtils]: Spent 13.47s on a formula simplification that was a NOOP. DAG size: 490 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:07,827 WARN L233 SmtUtils]: Spent 15.01s on a formula simplification that was a NOOP. DAG size: 426 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:20,653 WARN L233 SmtUtils]: Spent 12.82s on a formula simplification that was a NOOP. DAG size: 490 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:30,849 WARN L233 SmtUtils]: Spent 10.19s on a formula simplification that was a NOOP. DAG size: 426 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:32,212 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:32,212 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:31:32,214 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:32,215 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:31:32,218 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:32,218 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:31:32,220 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:32,220 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:33:20,578 WARN L233 SmtUtils]: Spent 1.81m on a formula simplification. DAG size of input: 517 DAG size of output: 513 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:34:05,503 WARN L233 SmtUtils]: Spent 44.92s on a formula simplification that was a NOOP. DAG size: 501 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:35:48,745 WARN L233 SmtUtils]: Spent 1.72m on a formula simplification. DAG size of input: 529 DAG size of output: 523 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:36:44,073 WARN L233 SmtUtils]: Spent 55.32s on a formula simplification that was a NOOP. DAG size: 510 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:36:44,132 INFO L203 LiptonReduction]: Total number of compositions: 304 [2022-12-05 20:36:44,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:36:44,146 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2fc52725, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:36:44,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 20:36:44,152 INFO L130 PetriNetUnfolder]: 4/19 cut-off events. [2022-12-05 20:36:44,152 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:36:44,152 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:44,152 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-05 20:36:44,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:36:44,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:44,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1598865153, now seen corresponding path program 1 times [2022-12-05 20:36:44,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:44,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725383745] [2022-12-05 20:36:44,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:44,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:44,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:44,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725383745] [2022-12-05 20:36:44,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725383745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:44,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:44,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:36:44,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968581473] [2022-12-05 20:36:44,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:44,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:36:44,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:44,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:36:44,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:36:44,529 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 22 [2022-12-05 20:36:44,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 53 flow. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:44,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:44,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 22 [2022-12-05 20:36:44,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:44,685 INFO L130 PetriNetUnfolder]: 165/276 cut-off events. [2022-12-05 20:36:44,685 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-05 20:36:44,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 276 events. 165/276 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 904 event pairs, 123 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 518. Up to 277 conditions per place. [2022-12-05 20:36:44,688 INFO L137 encePairwiseOnDemand]: 21/22 looper letters, 16 selfloop transitions, 0 changer transitions 5/21 dead transitions. [2022-12-05 20:36:44,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 21 transitions, 93 flow [2022-12-05 20:36:44,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:36:44,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:36:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 22 transitions. [2022-12-05 20:36:44,695 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-05 20:36:44,696 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 53 flow. Second operand 2 states and 22 transitions. [2022-12-05 20:36:44,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 21 transitions, 93 flow [2022-12-05 20:36:44,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 88 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:36:44,699 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 35 flow [2022-12-05 20:36:44,700 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=35, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2022-12-05 20:36:44,703 INFO L294 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2022-12-05 20:36:44,703 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 35 flow [2022-12-05 20:36:44,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:44,704 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:44,704 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:44,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:36:44,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:36:44,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:44,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1974562932, now seen corresponding path program 1 times [2022-12-05 20:36:44,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:44,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724026355] [2022-12-05 20:36:44,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:44,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:45,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:45,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:45,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724026355] [2022-12-05 20:36:45,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724026355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:45,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:45,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:36:45,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492782931] [2022-12-05 20:36:45,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:45,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:36:45,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:45,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:36:45,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:36:45,163 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 22 [2022-12-05 20:36:45,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 35 flow. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:45,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:45,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 22 [2022-12-05 20:36:45,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:45,489 INFO L130 PetriNetUnfolder]: 133/256 cut-off events. [2022-12-05 20:36:45,489 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:36:45,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 256 events. 133/256 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1030 event pairs, 65 based on Foata normal form. 27/215 useless extension candidates. Maximal degree in co-relation 531. Up to 185 conditions per place. [2022-12-05 20:36:45,490 INFO L137 encePairwiseOnDemand]: 14/22 looper letters, 17 selfloop transitions, 6 changer transitions 17/40 dead transitions. [2022-12-05 20:36:45,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 40 transitions, 169 flow [2022-12-05 20:36:45,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:36:45,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:36:45,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2022-12-05 20:36:45,493 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.38181818181818183 [2022-12-05 20:36:45,493 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 35 flow. Second operand 5 states and 42 transitions. [2022-12-05 20:36:45,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 40 transitions, 169 flow [2022-12-05 20:36:45,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 40 transitions, 169 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:36:45,494 INFO L231 Difference]: Finished difference. Result has 27 places, 21 transitions, 89 flow [2022-12-05 20:36:45,494 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=89, PETRI_PLACES=27, PETRI_TRANSITIONS=21} [2022-12-05 20:36:45,495 INFO L294 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2022-12-05 20:36:45,495 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 21 transitions, 89 flow [2022-12-05 20:36:45,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:45,495 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:45,495 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:45,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:36:45,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:36:45,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:45,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1081947185, now seen corresponding path program 1 times [2022-12-05 20:36:45,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:45,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248647222] [2022-12-05 20:36:45,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:45,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:46,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:46,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:46,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248647222] [2022-12-05 20:36:46,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248647222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:46,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:46,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:36:46,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614967850] [2022-12-05 20:36:46,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:46,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:36:46,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:46,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:36:46,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:36:46,237 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 22 [2022-12-05 20:36:46,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 89 flow. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:46,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:46,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 22 [2022-12-05 20:36:46,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:46,600 INFO L130 PetriNetUnfolder]: 102/201 cut-off events. [2022-12-05 20:36:46,600 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2022-12-05 20:36:46,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 201 events. 102/201 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 792 event pairs, 6 based on Foata normal form. 13/186 useless extension candidates. Maximal degree in co-relation 578. Up to 130 conditions per place. [2022-12-05 20:36:46,602 INFO L137 encePairwiseOnDemand]: 13/22 looper letters, 18 selfloop transitions, 9 changer transitions 16/43 dead transitions. [2022-12-05 20:36:46,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 43 transitions, 271 flow [2022-12-05 20:36:46,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:36:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:36:46,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 43 transitions. [2022-12-05 20:36:46,603 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2792207792207792 [2022-12-05 20:36:46,603 INFO L175 Difference]: Start difference. First operand has 27 places, 21 transitions, 89 flow. Second operand 7 states and 43 transitions. [2022-12-05 20:36:46,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 43 transitions, 271 flow [2022-12-05 20:36:46,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 43 transitions, 243 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-12-05 20:36:46,607 INFO L231 Difference]: Finished difference. Result has 32 places, 21 transitions, 112 flow [2022-12-05 20:36:46,607 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=112, PETRI_PLACES=32, PETRI_TRANSITIONS=21} [2022-12-05 20:36:46,609 INFO L294 CegarLoopForPetriNet]: 25 programPoint places, 7 predicate places. [2022-12-05 20:36:46,609 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 21 transitions, 112 flow [2022-12-05 20:36:46,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:46,609 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:46,609 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:46,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:36:46,609 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:36:46,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:46,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1938116131, now seen corresponding path program 1 times [2022-12-05 20:36:46,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:46,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219103965] [2022-12-05 20:36:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:46,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:47,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:47,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:47,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219103965] [2022-12-05 20:36:47,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219103965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:47,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:47,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:36:47,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113111662] [2022-12-05 20:36:47,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:47,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:36:47,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:47,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:36:47,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:36:47,270 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 22 [2022-12-05 20:36:47,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 21 transitions, 112 flow. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:47,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:47,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 22 [2022-12-05 20:36:47,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:47,606 INFO L130 PetriNetUnfolder]: 78/162 cut-off events. [2022-12-05 20:36:47,606 INFO L131 PetriNetUnfolder]: For 151/151 co-relation queries the response was YES. [2022-12-05 20:36:47,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 162 events. 78/162 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 586 event pairs, 23 based on Foata normal form. 8/148 useless extension candidates. Maximal degree in co-relation 544. Up to 101 conditions per place. [2022-12-05 20:36:47,607 INFO L137 encePairwiseOnDemand]: 16/22 looper letters, 11 selfloop transitions, 4 changer transitions 20/35 dead transitions. [2022-12-05 20:36:47,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 250 flow [2022-12-05 20:36:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:36:47,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:36:47,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2022-12-05 20:36:47,608 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.25 [2022-12-05 20:36:47,608 INFO L175 Difference]: Start difference. First operand has 32 places, 21 transitions, 112 flow. Second operand 6 states and 33 transitions. [2022-12-05 20:36:47,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 250 flow [2022-12-05 20:36:47,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 35 transitions, 231 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-12-05 20:36:47,609 INFO L231 Difference]: Finished difference. Result has 31 places, 15 transitions, 75 flow [2022-12-05 20:36:47,609 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=75, PETRI_PLACES=31, PETRI_TRANSITIONS=15} [2022-12-05 20:36:47,610 INFO L294 CegarLoopForPetriNet]: 25 programPoint places, 6 predicate places. [2022-12-05 20:36:47,610 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 15 transitions, 75 flow [2022-12-05 20:36:47,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:47,610 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:47,610 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:47,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:36:47,610 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:36:47,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:47,611 INFO L85 PathProgramCache]: Analyzing trace with hash 360406269, now seen corresponding path program 2 times [2022-12-05 20:36:47,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:47,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782743708] [2022-12-05 20:36:47,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:47,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:48,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:48,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:48,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782743708] [2022-12-05 20:36:48,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782743708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:48,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:48,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:36:48,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984140386] [2022-12-05 20:36:48,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:48,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 20:36:48,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:48,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 20:36:48,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-05 20:36:48,986 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 22 [2022-12-05 20:36:48,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 15 transitions, 75 flow. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:48,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:48,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 22 [2022-12-05 20:36:48,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:49,368 INFO L130 PetriNetUnfolder]: 13/37 cut-off events. [2022-12-05 20:36:49,368 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-05 20:36:49,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 37 events. 13/37 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 78 event pairs, 4 based on Foata normal form. 8/39 useless extension candidates. Maximal degree in co-relation 133. Up to 22 conditions per place. [2022-12-05 20:36:49,368 INFO L137 encePairwiseOnDemand]: 17/22 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2022-12-05 20:36:49,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 17 transitions, 117 flow [2022-12-05 20:36:49,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:36:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:36:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2022-12-05 20:36:49,369 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.13636363636363635 [2022-12-05 20:36:49,369 INFO L175 Difference]: Start difference. First operand has 31 places, 15 transitions, 75 flow. Second operand 6 states and 18 transitions. [2022-12-05 20:36:49,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 17 transitions, 117 flow [2022-12-05 20:36:49,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 17 transitions, 88 flow, removed 7 selfloop flow, removed 8 redundant places. [2022-12-05 20:36:49,370 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2022-12-05 20:36:49,370 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2022-12-05 20:36:49,370 INFO L294 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2022-12-05 20:36:49,371 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2022-12-05 20:36:49,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:49,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 20:36:49,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 20:36:49,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 20:36:49,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-05 20:36:49,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:36:49,374 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-12-05 20:36:49,377 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:36:49,377 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:36:49,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:36:49 BasicIcfg [2022-12-05 20:36:49,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:36:49,381 INFO L158 Benchmark]: Toolchain (without parser) took 429094.21ms. Allocated memory was 201.3MB in the beginning and 397.4MB in the end (delta: 196.1MB). Free memory was 166.6MB in the beginning and 315.3MB in the end (delta: -148.6MB). Peak memory consumption was 275.9MB. Max. memory is 8.0GB. [2022-12-05 20:36:49,381 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory is still 177.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:36:49,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4167.09ms. Allocated memory was 201.3MB in the beginning and 242.2MB in the end (delta: 40.9MB). Free memory was 166.6MB in the beginning and 95.2MB in the end (delta: 71.4MB). Peak memory consumption was 151.0MB. Max. memory is 8.0GB. [2022-12-05 20:36:49,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 152.11ms. Allocated memory is still 242.2MB. Free memory was 95.2MB in the beginning and 186.6MB in the end (delta: -91.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-05 20:36:49,381 INFO L158 Benchmark]: Boogie Preprocessor took 31.68ms. Allocated memory is still 242.2MB. Free memory was 186.6MB in the beginning and 182.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-05 20:36:49,381 INFO L158 Benchmark]: RCFGBuilder took 750.05ms. Allocated memory is still 242.2MB. Free memory was 182.4MB in the beginning and 140.5MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2022-12-05 20:36:49,382 INFO L158 Benchmark]: TraceAbstraction took 423988.86ms. Allocated memory was 242.2MB in the beginning and 397.4MB in the end (delta: 155.2MB). Free memory was 139.4MB in the beginning and 315.3MB in the end (delta: -175.8MB). Peak memory consumption was 206.9MB. Max. memory is 8.0GB. [2022-12-05 20:36:49,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory is still 177.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4167.09ms. Allocated memory was 201.3MB in the beginning and 242.2MB in the end (delta: 40.9MB). Free memory was 166.6MB in the beginning and 95.2MB in the end (delta: 71.4MB). Peak memory consumption was 151.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 152.11ms. Allocated memory is still 242.2MB. Free memory was 95.2MB in the beginning and 186.6MB in the end (delta: -91.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.68ms. Allocated memory is still 242.2MB. Free memory was 186.6MB in the beginning and 182.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 750.05ms. Allocated memory is still 242.2MB. Free memory was 182.4MB in the beginning and 140.5MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * TraceAbstraction took 423988.86ms. Allocated memory was 242.2MB in the beginning and 397.4MB in the end (delta: 155.2MB). Free memory was 139.4MB in the beginning and 315.3MB in the end (delta: -175.8MB). Peak memory consumption was 206.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 418.5s, 318 PlacesBefore, 25 PlacesAfterwards, 322 TransitionsBefore, 22 TransitionsAfterwards, 9480 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 175 TrivialYvCompositions, 121 ConcurrentYvCompositions, 7 ChoiceCompositions, 304 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6236, independent: 6203, independent conditional: 6203, independent unconditional: 0, dependent: 33, dependent conditional: 33, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6236, independent: 6203, independent conditional: 0, independent unconditional: 6203, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6236, independent: 6203, independent conditional: 0, independent unconditional: 6203, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6236, independent: 6203, independent conditional: 0, independent unconditional: 6203, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5632, independent: 5609, independent conditional: 0, independent unconditional: 5609, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5632, independent: 5598, independent conditional: 0, independent unconditional: 5598, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 87, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6236, independent: 594, independent conditional: 0, independent unconditional: 594, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 5632, unknown conditional: 0, unknown unconditional: 5632] , Statistics on independence cache: Total cache size (in pairs): 11952, Positive cache size: 11929, Positive conditional cache size: 0, Positive unconditional cache size: 11929, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 448 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 423.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 418.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 344 IncrementalHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 0 mSDtfsCounter, 344 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=3, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 369 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:36:49,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...